SECTION 5 WUG Access Tunnel C:\D Data\GWS C Drive\GWS\Client Files\1344 OGL - WKP\4 Deliverables\WUG Effects Summary\June 2022\WNP Groundwater Effects Summary_Final_Rev_0.docx 18 5.3 Hydrologic and Hydrogeologic Setting The tunnel profile has been developed to remain below the younger volcanics and is intended to be driven entirely through low permeability andesite as shown in Figure 17. Figure 19 Geologic Profile Along WUG Access Tunnel Alignment (Golder 2021) The first part of the tunnel is expected to be dewatered already from mining of the Favona ore body as shown in Figure 19 so no near surface effects are expected as a result. Figure 20 WUG Access Tunnel Conceptual Hydrogeologic Model 5.4 Summary of Effects Groundwater Inflows Groundwater inflows have been predicted using the same analytical methodology as the dual access tunnels. These calculations indicate around 3,000 m3/d inflow that would be taken back to Waihi for treatment and discharge.
RkJQdWJsaXNoZXIy MjE2NDg3